a{
    text-decoration: none;
    color:black;
}
li{
    float:left;
}
.center{
    width: 1390px;
    height: 208px;
    /* background-color: #fbfbfb; */
    position: relative;
    margin:auto;
}
h3{
    width: 160px;
    height: 26px;

}
.center ul{
    width: 160px;
    height: 116px;
    list-style: none;
}
ul.liupaili{
    width: 241px;
    height: 116px;
}
.center li{
    width: 76px;
    height: 26px;
    float:left;
}
.yuzhong{
    width: 160px;
    height:116px;
    margin-left:170px;
    margin-top:30px;
    
}
.yuzhong i{
    width: 0;
    height: 0px;
    border:5px solid transparent;
    border-top-color: #999;
    position: absolute;
    top:86px;
}
.yuzhong i:hover{
    border: 5px solid transparent;
    border-bottom-color:#999;
    position:absolute;
    top: 83px;
}
.liupai{
    position: absolute;
    bottom: 63px;
    left: 170px;
    margin-left:170px;
    
}
.liupai i{
    width: 0;
    height: 0px;
    border:5px solid transparent;
    border-top-color: #999;
    position: absolute;
    top:86px;
}
.liupai i:hover{
    border: 5px solid transparent;
    border-bottom-color:#999;
    position:absolute;
    top: 83px;
}
.zhuti{
    position: absolute;
    bottom: 63px;
    left:428px;
    margin-left:170px;
    
}
.zhuti i{
    width: 0;
    height: 0px;
    border:5px solid transparent;
    border-top-color: #999;
    position: absolute;
    top:86px;
}
.zhuti i:hover{
    border: 5px solid transparent;
    border-bottom-color:#999;
    position:absolute;
    top: 83px;
}
.xinqing{
    position: absolute;
    bottom: 63px;
    left:713px;
    margin-left:170px;
    
}
.xinqing i{
    width: 0;
    height: 0px;
    border:5px solid transparent;
    border-top-color: #999;
    position: absolute;
    top:86px;
}
.xinqing i:hover{
    border: 5px solid transparent;
    border-bottom-color:#999;
    position:absolute;
    top: 83px;
}
.changjing{
    position: absolute;
    bottom: 63px;
    left:960px;
    margin-left:170px;
    
}
.changjing i{
    width: 0;
    height: 0px;
    border:5px solid transparent;
    border-top-color: #999;
    position: absolute;
    top:86px;
}
.changjing i:hover{
    border: 5px solid transparent;
    border-bottom-color:#999;
    position:absolute;
    top: 83px;
}
.center li:hover{
    color:#31c27c;
}
.all h3:hover{
color:#31c27c;
}
ul.language{
    width: 1200px;
    height: 60px;
    background-color: #fbfbfb;
    position:relative;
    right:85px;
    top: 5px;
    z-index: 1;
    line-height: 60px;
    display:none;
}
ul.language2{
    width: 1200px;
    height: 60px;
    background-color: #fbfbfb;
    position:relative;
    right:333px;
    top: 1px;
    z-index: 1;
    line-height: 60px;
    display:none;
}
ul.language3{
    width: 1200px;
    height: 60px;
    background-color: #fbfbfb;
    position:relative;
    right:591px;
    top: 0px;
    z-index: 1;
    line-height: 60px;
    display:none;
}
ul.language4{
    width: 1200px;
    height: 60px;
    background-color: #fbfbfb;
    position:relative;
    right:1123px;
    top: 0px;
    z-index: 1;
    line-height: 60px;
    display:none;
}

.language li,.language2 li,.language3 li,.language4 li{
    color:black;
}
li:hover .language{
    display:block;
}
li:hover .language2{
    display:block;
}
li:hover .language3{
    display:block;
}
li:hover .language4{
    display:block;
}
.all{
    width: 1230px;
    height: 1455px;
    /* background-color: #f00; */
    margin:auto;
  position:relative;
}
.all h2{
    line-height: 60px;
    font-size:30px;
    position: absolute;
    top: -90px;
    left:68px;
}
.all button{
    width: 90px;
    height: 40px;
    border:1px solid #999;
    float:left;
    background-color:transparent;
    margin-right: 20px;
    font-size: 20px;
}
.footer{
    width: 1230px;
    height: 300px;
    /* border: 1px solid red ; */
    position:absolute;
    left:0px;
    top:1000px;
}
.footer h1{
    font-size:40px;
    color:black;
    float:left;
    position: absolute;
    top: 240px;
    right: 400px;
}
.footer button{
    width: 120px;
    height: 50px;
    border:1px solid #999;
    background-color:transparent;
    position: absolute;
    top: 320px;
    right: 561px;
}
.but1{
position: absolute;
top:-70px;
right: 134px;
background-color: #31c27c;
}
.but2{
position:absolute;
top:-70px;
right: 20px;
}
button:hover{
    background-color: #31C27C;
}
.all li{
    width: 224px;
    height: 305px;
    /* background-color: #0f0; */
    margin-left: 20px;
    position:relative;
}
.all img{
    width: 224px;
    height: 224px;
    position:relative;
    overflow:hidden;
    /* padding: 44px; */
    /* margin-right: 20px; */
}
.all p{
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: #fff;
    position: absolute;
    top:79px;
    left:75px;
    z-index:1;
    display:none;

}
.all i{
    width: 0px;
    height: 0px;
    border:20px solid transparent;
    border-left-color: #999;
    position:absolute;
    left:29px;
    top:15px;
}
.all ul li:hover p{
    display:block;
    
}
.all ul li:hover img{
    transform: translateY(-8px);
    transition:0.6s linear;
}
.big_nav{
    width: 490px;
}